# Problem

The provided code stub will read in a dictionary containing key/value pairs of name:[marks] for a list of students. Print the average of the marks array for the student name provided, showing 2 places after the decimal.

#### Example

The query_name is 'beta'. beta's average score is 50.0.

#### Input Format

The first line contains the integer , the number of students' records. The next  lines contain the names and marks obtained by a student, each value separated by a space. The final line contains query_name, the name of a student to query.

#### Output Format

Print one line: The average of the marks obtained by the particular student correct to 2 decimal places.

#### Sample Input 0

3
Krishna 67 68 69
Arjun 70 98 63
Malika 52 56 60
Malika


#### Sample Output 0

56.00


#### Explanation

Marks for Malika are  whose average is 56.00 .

#### Sample Input 1

2
Harsh 25 26.5 28
Anurag 26 28 30
Harsh


#### Sample Output 1

26.50


### Solution

  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 if __name__ == '__main__': n = int(input()) student_marks = {} for _ in range(n): name, *line = input().split() scores = list(map(float, line)) student_marks[name] = scores query_name = input() count = 0.00 for i in student_marks: if i == query_name: for i in student_marks[i]: count+=i a = count/3.00 format_float = "{:.2f}".format(a) print(format_float) 
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